import router from '../router'
import axios from 'axios'
import { ElNotification, ElMessageBox, ElMessage, ElLoading } from 'element-plus'
import { getToken, removeToken } from '@/utils/auth'
import errorCode from '@/utils/errorCode'
import { tansParams, blobValidate } from '@/utils/ruoyi'
import cache from '@/plugins/cache'
import { saveAs } from 'file-saver'
import useUserStore from '@/store/modules/user'
import Md5 from 'js-md5'



let downloadLoadingInstance;
// 是否显示重新登录
export let isRelogin = { show: false };

axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8'
// 创建axios实例
const service = axios.create({
  // axios中请求配置有baseURL选项，表示请求URL公共部分
  baseURL: import.meta.env.VITE_APP_BASE_API,
  // 超时
  timeout: 10000
})

// request拦截器
service.interceptors.request.use(config => {
  // 是否需要设置 token
  const isToken = (config.headers || {}).isToken === false
  // 是否需要防止数据重复提交
  const isRepeatSubmit = (config.headers || {}).repeatSubmit === false
  if (getToken() && !isToken) {
    // console.log(config)
    const admin = config.url.substring(1, 6)
    if (admin == 'admin') {
      config.headers['admintoken'] = getToken() // 让每个请求携带自定义token 请根据实际情况自行修改
    } else {
      config.headers['token'] = getToken() // 让每个请求携带自定义token 请根据实际情况自行修改
    }

  }

  // get请求映射params参数
  if (config.method === 'get' && config.params) {
    let url = config.url + '?' + tansParams(config.params);
    url = url.slice(0, -1);
    config.params = {};
    config.url = url;
  }
  if (!isRepeatSubmit && (config.method === 'post' || config.method === 'put')) {
    // 参数名ASCII码从小到大排序
    let sobj = {}
    if (config.data) {
      // 删除除特定参数
      delete config.data.params
      delete config.data.value1
      
      Object.keys(config.data).sort().forEach(d => {
        if (d !== 'params' && d !== 'value1') {
          sobj[d] = config.data[d]
          if (Array.isArray(config.data[d]) || config.data[d]?.constructor === Object) {
            sobj[d] = JSON.stringify(config.data[d])
          }
        }
        
      })
    }
    console.log(59, sobj)
    // md5加签
    let stringA = ''
    if (sobj) {
      for (const key in sobj) {
        if (sobj.hasOwnProperty(key)) {
          if (sobj[key]) {
            stringA += (`${key}=${sobj[key]}&`)
          }
        }
      }
    }
    console.log(72, stringA)
    if (stringA) {
      stringA = Md5(stringA + 'key=C3CE6F287937DABE283DDE485BAF7A74')
      config.data.sign = stringA
    }
    
    

    const requestObj = {
      url: config.url,
      data: typeof config.data === 'object' ? JSON.stringify(config.data) : config.data,
      time: new Date().getTime()
    }
    const sessionObj = cache.session.getJSON('sessionObj')
    if (sessionObj === undefined || sessionObj === null || sessionObj === '') {
      cache.session.setJSON('sessionObj', requestObj)
    } else {
      const s_url = sessionObj.url;                // 请求地址
      const s_data = sessionObj.data;              // 请求数据
      const s_time = sessionObj.time;              // 请求时间
      const interval = 500;                       // 间隔时间(ms)，小于此时间视为重复提交
      if (s_data === requestObj.data && requestObj.time - s_time < interval && s_url === requestObj.url) {
        const message = '数据正在处理，请勿重复提交';
        console.warn(`[${s_url}]: ` + message)
        return Promise.reject(new Error(message))
      } else {
        cache.session.setJSON('sessionObj', requestObj)
      }
    }
  }
  return config
}, error => {
  // console.log("error", error.message)
  Promise.reject(error)
})

// 响应拦截器
service.interceptors.response.use(res => {
  // debugger
  // 未设置状态码则默认成功状态
  const code = res.data.code || '000';
  // 获取错误信息
  const msg = errorCode[code] || res.data.msg || errorCode['default']
  // 二进制数据则直接返回
  if (res.request.responseType === 'blob' || res.request.responseType === 'arraybuffer') {
    return res.data
  }
  if (code === 401) {
    /*if (!isRelogin.show) {
      isRelogin.show = true;
      ElMessageBox.confirm('登录状态已过期，您可以继续留在该页面，或者重新登录', '系统提示', { confirmButtonText: '重新登录', cancelButtonText: '取消', type: 'warning' }).then(() => {
        isRelogin.show = false;
        useUserStore().logOut().then(() => {
          location.href = '/index';
        })
      }).catch(() => {
        isRelogin.show = false;
      });
    }
    return Promise.reject('无效的会话，或者会话已过期，请重新登录。')*/
    // removeToken()
    // setInterval(() => {
    //   location.href = '/login';
    // }, 2000)
    // router.push({
    //   path: '/login'
    // })
    ElMessageBox.alert(res.data.msg, '登录异常', {
      confirmButtonText: '确定',
      callback: () => {
        removeToken()
        setInterval(() => {
          location.href = '/login';
        }, 500)
      },
    })
  } else if (code === '001') {
    ElMessage({ message: msg, type: 'warning' })
    return Promise.reject(new Error(msg))
  } else if (code !== '000') {
    ElNotification.error({ title: msg })
    return Promise.reject('error')
  } else {
    return Promise.resolve(res.data)
  }
},
  error => {
    console.log(161, error)
    const data = error?.response?.data
    if (data?.code == 401) {
      // ElMessage({ message: data.msg, type: 'error', duration: 5 * 1000 })
      ElMessageBox.alert(data.msg, '登录异常', {
        confirmButtonText: '确定',
        callback: () => {
          removeToken()
          setInterval(() => {
            location.href = '/login';
          }, 2000)
        },
      })

    } else {
      ElMessage({ message: error.message, type: 'error', duration: 5 * 1000 })
    }

    // let { message } = error;
    // if (message == "Network Error") {
    //   message = "后端接口连接异常";
    // } else if (message.includes("timeout")) {
    //   message = "系统接口请求超时";
    // } else if (message.includes("Request failed with status code")) {
    //   message = "系统接口" + message.substr(message.length - 3) + "异常";
    // }
    // ElMessage({ message: message, type: 'error', duration: 5 * 1000 })
    return Promise.reject(error)
  }
)

// 通用下载方法
export function download(url, params, filename, config) {
  downloadLoadingInstance = ElLoading.service({ text: "正在下载数据，请稍候", background: "rgba(0, 0, 0, 0.7)", })
  return service.post(url, params, {
    transformRequest: [(params) => { return tansParams(params) }],
    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
    responseType: 'blob',
    ...config
  }).then(async (data) => {
    const isLogin = await blobValidate(data);
    if (isLogin) {
      const blob = new Blob([data])
      saveAs(blob, filename)
    } else {
      const resText = await data.text();
      const rspObj = JSON.parse(resText);
      const errMsg = errorCode[rspObj.code] || rspObj.msg || errorCode['default']
      ElMessage.error(errMsg);
    }
    downloadLoadingInstance.close();
  }).catch((r) => {
    console.error(r)
    ElMessage.error('下载文件出现错误，请联系管理员！')
    downloadLoadingInstance.close();
  })
}

export default service
